noticed whilst on way into work this morning the car seems to be overboosting? all the way up to the red when i hardly touch the accelarator?

Dont know if its connected but it took three attempts to start the car the other day too, it has been fine since but i have been keeping my eye on things.

Car has bluefin manifold and decat the usual - next on the list is the boost controlled but its not gonna be for some time as i have just bought a house.

Im going to keep my eye on things and try to take it steady for the time being

Anyone got any ideas or suggestions as to probably cause - its been fine since ive had it so it may just be a one off?

Thanks

P.s - only had the car just over a week - hope this isnt a sign of things to come